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Updated: Aug 12, 2025

Electroporation-Based CRISPR-Cas9-Mediated Gene Knockout in THP-1 Cells and Single-Cell Clone Isolation
Published on: February 28, 2025
Generation of a TIMP3 knockout stem cell line via CRISPR/Cas9 system
Tong Yi1, Jingjing Liu1, Siyao Zhang1
1Department of Ultrasound, Beijing Anzhen Hospital, Capital Medical University, Beijing Key Laboratory of Maternal-Fetus Medicine in Fetal Heart Disease (BZ0308), Beijing, People's Republic of China.
Abstract:
The tissue inhibitors of metalloproteinases 3 (TIMP3) play an essential role in the tumorigenesis of human pancreatic endocrine tumors and Sorsby fundus dystrophy. To further investigate the significance of TIMP3 in disease, we used CRISPR/Cas9 to create a TIMP3 knock out human embryonic stem cell line (WAe009-A-89) that can differentiate into any desired cell type. Our results show that the WAe009-A-89 cell line retains the typical colony form and normal karyotype of stem cells. The cells strongly expressed pluripotency markers and could differentiate into tissues of all three germ layers in vivo. This cell line allowed exploring the role of the TIMP3 gene in related diseases.

